Look into PDF/A and PDF/UA to improve accessibility

[stiber]

At this point, I have a lot of pointers into this topic. The question is: how accessible is the textbook? Here are some links, in no particular order:

• http://ceur-ws.org/Vol-1010/paper-01.pdf
• http://tug.org/pipermail/pdftex/2007-November/007434.html
• http://arxiv.org/pdf/1406.6126.pdf
• http://tex.stackexchange.com/questions/tagged/accessibility
• http://tex.stackexchange.com/questions/249236/alt-text-for-equations
• http://tex.stackexchange.com/questions/19279/latex-accessibility
• http://tex.stackexchange.com/questions/579/how-can-tagged-pdfs-be-created-that-support-universal-accessibility-and-reflowin
• http://www.mathstat.dal.ca/~selinger/pdfa/
• http://mirror.unl.edu/ctan/macros/latex/contrib/pdfx/pdfx.pdf
• http://ctan.org/pkg/accsupp
• http://river-valley.zeeba.tv/tex-mathml-for-tagged-pdf-the-next-frontier-in-mathematical-typesetting/

At this point, I'm thinking that, besides perhaps some modifications to the documents, there may need to be workflow elements (i.e., makefile) and documentation added to ease rebuilding the textbook and lab manuals.